Home / 100,512.40-150,768.60-53,273.20

Finding the Fourth Proportional to 100,512.40, 150,768.60 and 53,273.20

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Solution

The fourth proportional to 100,512.40, 150,768.60 and 53,273.20 is: 79,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,512.40 : 150,768.60 = 53,273.20 : x
  2. Step 2: Convert to fraction form
    100,512.40/150,768.60 = 53,273.20/x
  3. Step 3: Cross multiply
    100,512.40x = 150,768.60 × 53,273.20
  4. Step 4: Simplify right side
    100,512.40x = 8,031,925,781.52
  5. Step 5: Solve for x
    x = 8,031,925,781.52/100,512.40
  6. Step 6: Final answer
    x = 79,909.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.